Cercocarpus montanus var. paucidentatus (S. Wats.) F. L. Martin

Cercocarpus breviflorus A. Gray, PL Wright. 2: 54. 1853
Cercocarpus parvifolius brevijiorus Coville; M. E. Jones, Zoe 2: 245. 1891. Cercocarpus parvifolius brevifolius M. E. Jones; Sargent, Silva 4: 66. 1892.
A shrub 1-2 m. high, often spiny, with dark-gray, fissured bark; branches strigose-canescent when young, soon glabrous, brown and shining; petioles 1-2 mm. long, strigose; leaf-blades elliptic, mostly entire, acute at both ends, with revolute margins, rarely obscurely denticulate at the apex, grayish-strigose when young, green and glabrate above in age, finely tomentulose beneath, 8-15 mm. long; lateral veins 3 or 4 on each side, prominent beneath; flowers 1 or 2 in the axils, sessile or very short-pedicelled; tube of the hypanthium very short, in fruit only 5-6 mm, long, strigose; limb strigose without, together with the sepals 4 mm. broad; sepals triangular, acute; achenes about 8 mm. long; style in fruit 3 cm. long.
Type locality: Sides of mountains near Frontera, New Mexico [? — Front er?.s, Sonora]. Distribution: Texas, New Mexico, Arizona, Chihuahua, Coahuila, and Sonora.

Cercocarpus eximius (C. K. Schneid.) Rydberg
Cercocarpus parvifolius paucidentatus S. Wats. Proc. Am. Acad. 17: 353, in part. 1882. Cercocarpus paucidentatus Britton, Trans. N. Y. Acad. Sci. 14: 31, in part. 1894. Cercocarpus brevifiorus Sargent, Silva 13: 27. 1902. Not C. brevifiorus A. Gray. 1852. Cercocarpus brevifiorus eximius C. K. Schneid. Handb. Laubh. I: 530. 1905.
A straggling shrub up to 4.5 m. high, or rarely a tree 5-7 m. high, with grayish, fissured bark, somewhat reddish when young, the branches villous-canescent; petioles 2-4 mm. long; Pa.rt 5, 1913] ROSACEA^
423
leaf-blades thick, 1.5-3 cm. long, 8-12 mm. wide, obovate, spatulate, or elliptic, few-toothed at the rounded apex or nearly entire, cuneate at the base, softly pilose when young, green above, densely tomentulose beneath; lateral veins 4 or 5 on each side, directed strongly forward; flowers 1-3 in the axils, pedicelled; tube of the hypanthium villous-tomentose, 6-8 mm. long; limb villous without, puberulent within, together with the sepals 5 mm. wide; sepals triangular, acute; achenes about 8 mm. long; style in fruit 4~5 cm. long.
Type locality: El Capitan Mountains, New Mexico.
Distribution: Mountains of New Mexico, Arizona, Chihuahua, and Sonora.